toruga mõõtevahend esemete või kehaõõnsuste (avade jms) sisemuse vaatlemiseks ja kontrolliks, painduva kaabliga mõõtevahend varustatuna sisseehitatud valgustusega raskesti ligipääsetavate kohtade kontrollimiseks, illuminated optical, typically slender and tubular instrument (a type of borescope) used to look deep into the body by way of openings such as the mouth or anus, and used in procedures called an endoscopy, inspection instrument composed of image sensor, optical lens, light source and mechanical device, which is used to look deep into the body by way of openings such as the mouth or anus